GitHub user shivaram opened a pull request:
https://github.com/apache/spark/pull/19624
[SPARKR][SPARK-22315] Warn is SparkR package version doesn't match
SparkContext
## What changes were proposed in this pull request?
This PR adds a check between the R package version used and the version
reported by SparkContext running in the JVM. The goal here is to warn users
when they have a R package downloaded from CRAN and are using that to connect
to an existing Spark cluster.
This is raised as a warning rather than an error as users might want to use
patch versions interchangeably (e.g., 2.1.3 with 2.1.2 etc.)
## How was this patch tested?
Manually by changing the `DESCRIPTION` file
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/shivaram/spark-1 sparkr-version-check
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/19624.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #19624
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commit 6f6696762a8e779527339360c28f134da36940d6
Author: Shivaram Venkataraman <shiva...@cs.berkeley.edu>
Date: 2017-10-30T02:30:25Z
Warn if R pkg version doesn't match JVM version
commit 680a38ccd106145cd7dd72c10ed9f2b1b41b18f6
Author: Shivaram Venkataraman <shiva...@cs.berkeley.edu>
Date: 2017-10-31T20:11:46Z
Remove snapshot before comparing versions
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